Biol Quiz Heart and circulatory system

What do capillaries, the smallest blood vessels, do?

• Whatever they want.
• exchange phone numbers with other cells so they can snap chat
• exchange nutrients and oxygen for waste 
• break down foods

Tags

NGSS.MS-LS2-3

Which does not make up the circulatory system?

• heart
• blood
• lungs
• blood vessels

Which blood vessels carry blood to the heart?

• capiliaries
• veins
• arteries
• arterioles

The movement of blood through the body is called? 

• circulation
• locomotion 
• ventriculation
• heart pump

The beating sound your heart makes comes from: 

• Blood going in the wrong direction
• Valves closing
• The heart skipping beats
• Your ears playing tricks on you

Blood that leaves the heart and is heading out into the body exits through the ________. 

• aorta
• interventricular septum
• pulmonary veins
• superior vena cava

How many valves does  the heart have ? 

• 7
• 4
• 3 
• 2 

How many chambers does the heart have ? 

• 4
• 6
• 3
• 1

What is the main function of the heart ? 

• The heart circulates blood and oxygen throughout the body.
  
• The heart is the control centers for all body activities.
• The heart gets rid of the wastes in your body produced by homeostasis. 
• The heart transports , protection and regulation. Blood transports the following substances: 

Arteries are ____________________ than veins.

• thicker and stronger
• smaller and weaker
• thicker and weaker
• smaller and stronger